Motion sensor



FIG. 1 is a front perspective view of a motion sensor;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken line showing of elements on the rear is for the purpose of illustrating portions of the motion sensor that forms no part of the claimed design. 

CLAIM The ornamental design for a motion sensor, as shown and described. 